<?php


/**
 * Email Validation
 * Validates the format of the provided email via AJAX.
 */
add_action('wp_ajax_email_validate', 'email_validate');
add_action('wp_ajax_nopriv_email_validate', 'email_validate');

function email_validate() {
    if (filter_var($_POST['email'], FILTER_VALIDATE_EMAIL) === false) {
        header("Content-Type: application/json");
        echo json_encode(array(
            'status' => 'error',
            'text' => esc_html__('Invalid email format', 'woodmart')
        ));
    }
    wp_die();
}

/**
 * Send Verification Code
 * Generates a random code, encrypts it, stores it in a cookie, and sends it via email.
 */
add_action('wp_ajax_send_code', 'send_code');
add_action('wp_ajax_nopriv_send_code', 'send_code');

function send_code() {
    $email = sanitize_email($_POST['email']);
    if (!is_email($email)) {
        wp_die(json_encode(['status' => 'error', 'text' => 'Invalid email']));
    }

    // Generate a random 4-digit code
    $code = sprintf("%04d", mt_rand(1000, 9999));

    // Store code in a secure session for 5 minutes
    session_start();
    $_SESSION['login_code'] = [
        'code' => $code,
        'email' => $email,
        'expires' => time() + (5 * 60)
    ];
    session_write_close();

    // Prepare email content
    $language = function_exists('pll_current_language') ? pll_current_language() : 'en';
    if ($language === 'ru') {
        $subject = "Проверочный код Cosmopet - $code";
        $message = "Привет, это Cosmopet.\nВаш проверочный код: $code\nДействителен 5 минут.";
    } else {
        $subject = "Cosmopet Verification Code - $code";
        $message = "Hello, this is CosmoPet.\nYour verification code: $code\nValid for 5 minutes.";
    }

    // Configure email headers
    $headers = array(
        'From: Cosmopet <pro@cosmopet.shop>',
        'content-type: text/plain; charset=utf-8',
        'Reply-To: pro@cosmopet.shop',
    );

    // Send email with fallback logging
    $sent = wp_mail($email, $subject, $message, $headers);
    if ($sent) {
        wp_die(json_encode(['status' => 'success', 'message' => 'Code sent']));
    } else {
        error_log("Email failed to send to $email. Error: " . json_encode(error_get_last()));
        wp_die(json_encode(['status' => 'error', 'text' => 'Failed to send code']));
    }
}

/**
 * Check Verification Code
 * Validates the user-entered code, logs in or registers the user.
 */
add_action('wp_ajax_check_code', 'check_code');
add_action('wp_ajax_nopriv_check_code', 'check_code');

function check_code() {
    header("Content-Type: application/json");
    
    $code = sanitize_text_field($_POST['code']);
    $email = sanitize_email($_POST['email']);

    session_start();
    if (isset($_SESSION['login_code']) && is_array($_SESSION['login_code'])) {
        $stored_data = $_SESSION['login_code'];
        if ($stored_data['email'] === $email && $stored_data['code'] === $code && $stored_data['expires'] > time()) {
            // Generate a random password
            $password = wp_generate_password(12, true, false);

            if (email_exists($email)) {
                // Log in existing user
                $user = get_user_by('email', $email);
                wp_set_password($password, $user->ID);
                $login = wp_signon([
                    'user_login' => $email,
                    'user_password' => $password,
                    'remember' => true
                ]);

                if (!is_wp_error($login)) {
                    // Redirect to admin dashboard
                    update_user_meta($user->ID, 'activated', true);
                    wp_die(json_encode(['status' => 'success_auth', 'redirect' => admin_url()]));
                }
            } else {
                // Register new user
                $user_id = wp_create_user($email, $password, $email);
                if (!is_wp_error($user_id)) {
                    wp_update_user([
                        'ID' => $user_id,
                        'display_name' => $email
                    ]);
                    $login = wp_signon([
                        'user_login' => $email,
                        'user_password' => $password,
                        'remember' => true
                    ]);

                    if (!is_wp_error($login)) {
                        update_user_meta($user_id, 'activated', true);
                        wp_die(json_encode(['status' => 'success_reg', 'redirect' => admin_url()]));
                    }
                }
            }
        }
    }

    // Cleanup expired session data
    if (isset($_SESSION['login_code']) && $stored_data['expires'] <= time()) {
        unset($_SESSION['login_code']);
    }
    session_write_close();

    wp_die(json_encode(['status' => 'error', 'text' => 'Invalid or expired code']));
}

/**
 * Logout Redirect
 * Redirects to the homepage after user logout.
 */
add_action('wp_logout', 'logout_redirect');

function logout_redirect() {
    wp_redirect('/');
    exit();
}


// Отправка кода и проверка Email
add_action( 'wp_ajax_email_activate', 'send_activation_email' );
add_action( 'wp_ajax_nopriv_email_activate', 'send_activation_email' );

function send_activation_email() {
    error_log(123);
    $user = wp_get_current_user();
    $activation_key = sha1($user->user_email . time()); // Generate a unique activation key
    update_field('uuid', $activation_key, 'user_' . get_current_user_id()); // Save the key in user meta
    
    $activation_link = home_url("/activate/$activation_key");

    if(pll_current_language() === 'ru'){
        $subject = "Активация аккаунта COSMOPET -".$string;
        $message = " Остался последний шаг!\n
Пройдите по ссылке для активации аккаунта:\n
".$activation_link;
    } else {
        $subject = "Account activation COSMOPET -".$string;
        $message = "Last step!\n
 Follow the link to activate your account\n
".$activation_link;
    }

    wp_mail($user->user_email, $subject, $message);
}



add_action('init', 'custom_register_activation_endpoint');

function custom_register_activation_endpoint() {
    add_rewrite_rule('^activate/([^/]*)/?', 'index.php?activation_key=$matches[1]', 'top');
    add_rewrite_tag('%activation_key%', '([^&]+)');
}


add_action('template_redirect', 'custom_handle_activation_request');

add_action('template_redirect', 'custom_handle_activation_request');

function get_user_by_acf_field_value($field_value) {
    // Prepare the arguments for WP_User_Query
    $args = array(
        'meta_query' => array(
            array(
                'key' => 'uuid', // Change to your ACF field key
                'value' => $field_value,
                'compare' => '=', // You can use other comparison operators if needed
            ),
        ),
    );

    // Execute the query
    $user_query = new WP_User_Query($args);

    // Check for results
    if (!empty($user_query->get_results())) {
        return $user_query->get_results(); // Returns an array of WP_User objects
    } else {
        return null; // No users found
    }
}

function custom_handle_activation_request() {
    if (get_query_var('activation_key')) {
        $activation_key = sanitize_text_field(get_query_var('activation_key'));
        
        $users = get_user_by_acf_field_value($activation_key);
        
        if ($users) {
            foreach ($users as $user) {
                $user->set_bio();
                // delete_user_meta($user->ID, 'uuid'); // Clean up the activation key
                update_field('uuid', '', 'user_' .  $user->ID);
                update_field('activated', true, 'user_' .  $user->ID);
                wp_set_auth_cookie($user->ID);
                wp_redirect('/my-account/'); // Redirect to the homepage or a custom page
                var_dump($user);
                exit;
            }
        } 
    
    }
}